Device for the purification of waste liquors.



No.-773,593. PATENTED NOV. 1, 1904.

H. RIENSGH. DEVICE FOR THE PU RIFIGATION 0F WASTE LIQUORS.

APPLICATION FILED MAR. 4, 1902.

NO MODEL.

UNITED STATES Patented November 1, 1904.

HERMANN RIENSCH, OF CHARLOTTENBURG, GERMANY.

DEVICE FOR THE PURIFICATION OF WASTE LIQUORS.

SPECIFICATION forming part of Letters Patent No. 773,593, dated November1, 1904.

Application filed March 4, 1902.

T0 aZZ whom, it may concern:

Be it known that I, HERMANN RIENsoH, civil engineer, a subject of theKing of Prussia, Emperor of Germany, residing at 12 Friedrich- CarlPlatz, in the city of Charlottenburg, near Berlin, Kingdom of Prussia,German Empire, have invented a certain new and useful Device for thePurification of Waste Liquors, of which the following is aspecification.

The object of my invention is to provide a cheap and easily-operateddevice for purifying waste liquors of various sorts; and it consists insubstance of a perforated inclined plate upon which the waste liquor isallowed to flow, in combination with stationary side walls, withscraping means, and means for rotating such plate, whereby the residuesor deposits which are separated out from the liquid are caught and areremoved at an easilyaccessible place from the said rotating perforatedplate.

Such invention is fully shown and described in the followingspecification, of which the accompanying drawings form a part, whereinsimilar numerals of reference designate likeor equivalent parts whereverfound throughout the several views, and in which- Figure 1 is a view invertical longitudinal section of my improved apparatus for purifyingwaste liquors, and Fig. 2 is a top plan View thereof.

The waste or spent liquor, sewage, or the like is introduced into thedrain 1, where it enters the apparatus and drops upon the perforatedinclined plate 2, of circular and usually, also, annular shape, to whicha rotating motion is imparted.

The reference-numeral 3 designates stationary side walls so arranged asto flank that part of the rotary annular plate 2 which dips into thetank 5, while the other higher part of the plate is unflanked at allsides.

The numeral 4 designates rollers or Wheels on which the movable plate isrotated.

In order to hold the annular plate 2 firmly in position and yet at thesame time allow the same to freely rotate, such plate is usuallyprovided on its inner and outer edges on the under side with an annularrail or guide-ring Serial No. 96,580. (No model.)

11, each of which is provided with a central groove 12, into which fitsthe adjacent wheels 4, and by this arrangement the plate is kept asfirmly in position while being rotated as though mounted upon an axle.

At the highest freely-accessible point of the perforated plate 2 Iprovide a scraper 6, which is so arranged that the solid elementsremoved from the liquid are directly transferred thereby to the truck orcar 7 which transference is greatly facilitated by thedownwardly-inclined surface of the plate 2. At the rear of the scraper 6the perforations of the plate 2 are cleaned, and preferably from belowand from above at the same time, by means of rotary brushes 8.

The sludge and sand which accumulate at the lowest point of the tank 5may be removed by a suitable pipe or it may be drained off by a pumpthrough the pipe 9. In some cases these deposits may be allowed toremain in the purified wateras, for instance, in sugar factoriesand insuch cases a pipe or passage 10 may be used for draining the apparatus.The requisite pressure may be obtained by the difference of level oftheentrance and delivery openings.

What I claim, and desire to secure by Letters Patent, is

1. A device for the purification of waste liquors by mechanical meanscomprising the combination with a suitable tank of an inclinedperforated plate the lower part of which dips into the said tank,stationary side walls in the tank adjacent to the plate, and means toimpart a rotary movement to said plate, the higher part of said platebeing exposed.

2. In combination in a device for the purification of waste liquors,atank, an inclined rotating plate part of which dips into said tank, thehigher part of said plate being exposed, and a suitable scraping devicein connection with said higher part for the removal of solid depositsand for transferring the same to a suitable transporting device.

3. .In combination with a device for the purification of waste liquors,a tank, an inclined rotating perforated plate the higher part of whichis exposed, and rotary brushes at said higher part for the purpose ofcleaning the openings of the said plate from above and from below,substantially as described.

4. A device for the purification of waste liquors by mechanical meanscomprising the combination with a suitable tank, of an inclined circularannular perforated plate the lower part of which dips into the saidtank, stationary side walls in the tank adjacent to the plate, and meansto impart a rotary movement to said plate.

5. In a device for the purification of waste liquors, a tank, aninclined annular rotating plate the lower part of which dips into thetank and the higher part of which is exposed, and a suitable scrapingdevice in connection with said higher part of the plate for the removalof solid deposits and for transferring the same to a suitabletransportation device. 6. In a device for the purification of wasteliquors, a tank, an inclined annular rotating perforated plate thehigher part of which is exposed, and rotary brushes at said higher partfor the purpose of cleaning the openings of the said plate from aboveand from below, substantially as described.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

HERMANN RIENSCH. I/Vitnesses:

RICHARD GUENTHER, CARL GRUND.

